Power transmission or torque converter



1950 s. F. 'SCHLOTE 2,508,971

POWER musuxssxon on TORQUE comm Filed Dec. 1'7, 1945 10 Sheets-Sheet 1 Inventor 60/00 F. SCHLOTE Attorneys y 3, 1950 e. F. SCHLOTE ,50 ,97

POWER TRANSMISSION 0R TORQUE CONVERTER Filed Dec. 17. 1945 10 Sheets-Sheet 2 Alto may:

May 23, 1950 a. F. SCHLOTE POWER TRANSMISSION 0R TORQUE CONVERTER 10 Sheets-Sheei 3 Filed Dec. 1'7, 1945 Inventor A tta rneys y 3, 1950 G. F. SCI-QILOTE 2,508,971

POWER mmsuxssxon 0R TORQUE comma Inventor 60/00 I? SC/ILO TE zwyhm All!) rney;

G..F. SCHLOTE rowan TRANSMISSION 0R TORQUE comma May 23, 1950 1O Sheets-Sheet 5 Filed Dec. 17, 1945 I m'entor 60/00 ESC/ILOTE A Ito rneys May 23, 1950 e. F. SCHLOTE 2,508,971

POWER msuxssxon OR TORQUE comma 10 Sheets-Sheet 6 Filed Dec. 17, 1945 Inventor W wipm Attorneys May 23, 1950 0 2,508,971

POWER TRANSMISSION 0R TQRQUE CONVERTER Filed Dec. 17, 1945 10 Sheets-Sheet 7 Irwe'ntor aw/o0 1 sci/4 ore- Attomey: I

y 1950 a. F. SCHLOTE ,9

POWER TRANSIIISSION QR TORQUE CONVERTER Filed Dec. 1'7. 1945 10 Sheets-Sheet 8 0 Q Inventor 40/00 5 5001.075

7 Attorney:

M 23,1950 e. F. S CHLOTE 2,508,971

POWER TRANSMISSION 0R TORQUE CONVERTER Filed Deg. 17. 1945. l0 Shee'ts-Sheet 9 gig, 78.

I m'entm' 671/00 F. SCWLOTE Atto may:

1950 cs. F. SCHLOTE 7 rowan 'mnsuxssxon 0R TORQUE comma Filed Dec. 17, 1945 l0 Sheets-Sheet 10 Im'enlbr 60/00 I? SUI/1.075

Alta may:

Patented May 23, 1950 NT; OFFICE rowan TRANSMISSION on TORQUE Y CONVERTER Guido F. Schlote, Milwaukee, Wis.

Application December 17, I945, Serial'No. 635,502

tures disclosed and claimed in Letters Patent 2,026,142 and 2,204,514 issued to me Dec. 31, 1935, and June 11, 1940, respectively, for transmission mechanism.

The invention aims to provide a novel combination clutch and transmission mechanism adapted to replace the present transmission and clutch, being connected to the crankshaft of the engine and the differential or rear wheel drive.

An object of the invention is to improve the construction of U. S. Pat. 2,204,514 by Changing the adjusting mechanism and locating the same in the rear compartment of the transmission.

Another object of the invention is to improve the construction referred to in the preceding paragraph by standardizin the rockers, the clutch parts connected thereto and the wristpins connecting both. The construction hereinafter set forth considerably reduces the amount of heat generated in the patented structure.

The vibrations of the rockers are lessened.

The adjusting mechanism is more elficient and practical. Y

The cost of production is also reduced. The same applies to the cost of assembling and taking the device apart.

This new construction also permits a better, simpler and more practical way of coupling the input shaft to a power plant.

, Further more this new construction makes a considerable simplification of the lubricating system possible.

Various additional objects and advantages will become apparent from a consideration of the description following taken in connection with the accompanying drawings illustrating a pre- 'ferred and operative embodiment.

4 Claims. (01. 74-117) Figure 5 is a transverse section on line 5--5'of Fig. 1A; a I

Figure 6'is a transverse section on line 6-6 of Fig. 1B; Y I

Figure 7 is a transverse vertical section on line l-Tof Fig. 1A; 7

Figure 8 is a side view, partly broken away and partly in section, of the main input shaft; Figure 9 is a side view'of-the adjusting or Bendix shaft;

' Figures 10 and 11 and cross sectional views of the-Bendix shaft on lines l0-l|l and ll-l I, re- 'spectively of Figure 9; Y Figure 12 is a detail end view of the eccentric assemblyy- Y Figure 13 is a side view of the assembly; Y Figure 14 is a detail front view of the rack;

Figure 15 is a detail longitudinal section on line l5-| 5 of Fig. 14;

Figure 16 is a detail transverse'section rack on line l6-l6 of Fig. 14;

Figure 17 is a -detail front view of one ofthe alternators; Y Y Figure 18 is a side view of an alternator;

Figure 19 is a rear view of an alternator;

Figure 20 is a-detailside view of the main output shaft, the left-hand portion being shown in diametraisection; Y g I Figure 21 is a view of the left-hand end of the main output shaft;

Figure 22 is a view of the right-hand end the main output shaft;

Figure 23' is a' detail side view of the adjusting screw shaft; I

Figure 24 is a auxiliary shafts;

Figure 25' is a fragmentary sectional view ilof the detail side view of one of the lustrating the relationship between the'right end of the main input shaft and the high pitch nut, the right end of the Bendix shaft being illustrated in elevation.

, Referring specifically to the drawings where'- in like characters of reference designate like or similar parts, 2 denotes the cylindrical wall of a casing the axis of which is horizontally disposed and which is supported by feet 3 with bolt holes l (Figs. 4-7) and provided at the top with an eye bolt ;[5. The left-hand or front or input end of the casing is closed by a front endtplate 1 which is securedto the front end of the cylindrical wall by bolts 8 and bulges outwardly and has a central opening surrounding the axis of the cylinder and within a pair of annular flanges 9 and I0, the former of which extends inwardly while the latter extends outwardly and is provided with tapped holes for the securing bolts 8 of a small front end ring plate l2 which carries on its inner side an annular flange I3 disposed within the outwardly extending flange l0. Within the flange l3 and on the inner side of a flat flange l4, being part of the plate [2, is an annular oil retainer which surrounds the left-hand end portion of the main hollow input shaft ll, shown in detail'in Fig. 8.

The outer end of shaft I1 is closed by a plug [8 held against turning relatively to the shaft in adjusted position by a screw l9 which may be threaded into one of a plurality of radial holes formed in the plug. The inner end of the same carries a reduced extension 22 provided with a radially disposed taper pin 24 to whichoneend of a coil spring 25 is fastened. Thisfin ing surrounds the extension described and an extension 26 of an adjusting or Bendix shaft 21 and is-fase tened to a taper pin 28 jextending from such exten n 26- The shaft 21 is shown in detail in Figs. Sell includes an intermediate section Blithe major part of which is provided with gear teeth 34. The section 30 terminates ina radial flange33 whereby the former is joined to a threaded section 34 of high pitch and larger cross section than the eear s ti m The left-hand end portion of shaft l1 enclosing the plug l8, spring 25 and a portion of the aextensionlli of adjusting shaft 21 is' integral with .a, relatively short journal portion ,3! which is journaled in a ball bearing 38 seated in an an- ;nular and angular recess formedin'the inner side of the inwardly extending flange 8 of the front end plate I. This bearing is held at its inner end by a ringshaped retaining plate 40 secured by screws 4| to the inner end of the flange seating the ball bearing.

The journal portion of shaft If! surrounds the thinner reduced part of a bushing 44 which surrounds the smooth or untoothed left-hand part of the intermediate section 30 of the adjusting shaft 31. A larger and thicker part or the bushing M occupies the space between the interior of l] and a port-ion of the extension 26 of the sha t Near the right-hand or inner end .of shaft I1 is for ed a bea n Portion .41 co e t ic with part 31, and which is jonrnaled ina, pair of space be r n e c ounted n a centl opening in the thickened central part 4.8 .of a Pa t tion 49 of the c sing- T e b ar g dev "38 to the right is held against axial motion .bya retaining ring 40 secured by screws M to the right-hand side of the central enlargement of the partition. The two bearing devices in which the shaft portion 41 is journaled. are spaced from one another by a pair of spaced concentric spacing rings (not shown) Between the bearing portions 31, 41 of shaft H are a, pair of spaced flanges 5d on the inner side of each .of which is an eccentric shaft part 52 which parts 52 are circumferentially spaced from one another 180. The transverse cross section of either part 52 is generally trapezoidal and is broadly the remainder of a circle from which unequal segments have been cutoff by parallel chords. The cross section differs further from a' trapez oid by the formation of a fragmentary cylindrical hollow in each eccentric part 52 (Figs. 4, 7). This hollow opens through the longer chord referred to and is a part of the hollow extending throughout the shaft 11. In assembled condition the toothed section 30 of :the adjusting shaft 21 is housed in the .portion of shaft 11 between the flanges so that the gear teeth of the shaft 27 project through the openings in the wider chordal surfaces of the eccentric parts 52.

Either of the eccentric parts is mounted for sliding movement within an opening 54 formed in an eccentric assembly or control or governor device, generally denoted by 55 and illustrated in detail in Figs. 12 and 13. Either assembly 55 comprises (a pair ,of substantially 'semiecylindrlcal parts each'having an axial length equal to that of one of the eccentric shaft parts 52. The two halves of either assembly are connected by four bolts 51 the-heads of which are seated in sockets deep enough so that the heads do not project beyond the cylindrical surface of the assembly. Another pair of bolts 59 extend each through one half of anassembln parallel to one another and to the diametral surface of either half into the opening 354 for threaded engagement with a rack 60 (Figs. 14-16) which meshes with the gear teeth 3l of the adjusting shaft and has holes fil for the bolts .59. .Since the hollow in-one of the eccentricinput shaftsections 52 opens in ardirection opposite to that .of the other, the teeth of the .tworacks-extend in opposite 'direcions.

Either eccentric assemblyorgovernor device'55 is journaled ina steel ringfiilof equalaxial length which is provided on its inner surface with an intermediate oil -groove.64. The outer surfaces of the steel rings- 63 contact the inner concave surfaces of fragmentary cylindrical portions 6.5 of three rocker arms =61. The axial length .of the cylindrical portions -65 is that of ther-ing and .eccentric assembly, but the arm-proper is .of considerably lesser' axial width and extends fromaan intermediate part of the cylindrical-fragment. A pair of retaining rings 68 is provided, each having a radial flange 68 at the inner endand-ofan axial Width permitting either ring to be mounted on the cylindrical portions of the three rocker arms and on'one side ofthe arms properand the steel ring 63. A bolt 10 is passed-through the arm portion of-each rockerandengages with its washer 1|, adjoining the crownburnut against the outer side of one flange B9 and with its, head 13 against the outer side of the other flange-59.

The arm ofeach rocker has at its-free end-an axial aperture for a wristpin 1'5 of a length equal to the axial length .of the-cylindrical part of a rocker and held by its midway portion andset screw 16 co-acting therewith (Fig. .lA).

The wrist pin .is journaled with either arm on oneside of the rocker. in one of a pair. of aligned holes 18 either of which isjformed near the free .end of either bifurcation 19. of an alternator or inner clutch memberfifl. .The bifurcations are joined at'their opposite ends andareintegral with a laterally extending stem ,82 splinedinto a central holein the star-portion of thealtere nator which portion has ,a thin cylindricalpart adjacent the bifurcations. Figures 17 and 19 illustrate the alternator or inner clutch part in detail.

The star portion is a part of an overrunning clutch structure and characterized by a plurality of uniformly spaced teeth 81- which project'beyond a surface approaching that of a cylinder, but distinguished therefromby the fact theireis a slight depression 88 behind (viewed clockwise) a tooth and the distance of the surface from the axis increases in the direction toward the next (clockwise) tooth.

In the rear side of each tooth and above'the depression is a socket 89 for a coil spring sur rounding the stemof .a shoe (both notshown) which engages a roller 92. The same engagesthe .i-l-tom-bf the cup (Fig. 1B).

tiintrz'cylindrical .wall: SHIfQOGgOf areaess; formed in ither end ..of acup .105, as seenin Figure. 1A. Qzwinatdthe. construction .ofthesurfacebetween thev starteeth the force :with which the roller presses. against; the concave. surface :ofthe recess increases as the roller approaches the-toothahead ofzit viewed clockwise. The flange 85 holds the rollers in the recess of the cup.

The cup.-9 5 is recessed at both ends and keyed at :91. by its intermediateportion.uponpne of three auxiliary shafts I00. Each shaft iseof a length sli htly-less than theaxial lengthofthe ca g aandits reduced left-hand or front end se mo I I s i u n d in a ear n de ice 402 .Inounted in a recess in'a-bossiI03 ,on .theinner sweetie. low r ar Qt ih r n nd a d ehind h 4 Fi A he 0 1 of eachs a t ali nmen w ththe-in e me iate.po tie 1-0 shaft l hr r on-i we n t e esseatr q. P ti I S;- S ribe =E Q1 haf 1 00 lso jpQl'udQ? a 1. second intermediate bearing portion -.I 0I,journaledin a bearing device I02 arranged an enlarged lower part I03 of the partition 49. .Erorn the right-hand end of the intermediate hearing portion I 0| ofeach shaft I00 extends a rshaft portion IIO upon which ,a spur gear III .is .lgeyed. by means of a key H2. .In order to hold eachshaft I00, the parts carried thereby or-,co acting therewith, the following construction is provided. .A .washer II4 surroundsthe shaftand hejarsagainst the inner race of the front end healing device and with its rightehand side .againstthe left-hand end of aIbushing II6. An,- pther. washer I I 4.bears .againstthe inner. race of the intermediate bearing device. and against. the leftehand end of a-bushing II6 which bearswith .itsrightL-hand end against a. washer I I4that icontact ilwith itsother side the spur. gear III. 'The eameis engaged on its other side .by a washer I I1, pressed byv a hexagon nut I I8v which is threaded on the shaft. The right-hand end of shaft portion'l Iii-is journaled in a rear end vbearingdevice' I02 which is mounted in the rear end plate Lina similar manner in which thejfront end bearing of the shaft is mounted in thefront end plate as indicated by like reference characters. .I 'he rear end plate is fastened to the cylindrical part of the casing in a manner similar to the ,front end plate asexpressed by the same reference characters.

Eachpof the gears III is in mesh with a sun or rnaster gear I25 which is splined'by key I26 upon the: enlarged inner cup-shaped portion I2'I of a inain output shaft I28 illustratedin detail in 'The-cup part of shaft I28 is journaled'in-an inner'bearing device I29 which-is seated inan-anhula-rand angular recess formed in-the inwardly extending-flange 9 of the rear end plate. The *s ame'has-a' central shaft opening similar to-that of -thefrontend plate. Between theinner race 'qf -thebearing device I29 and the master gear is awasher I30. Theleft-hand end'of thecup part o'f theoutput shaft carries a radial flange I3I which is received inan annular recess in the sun gear and surrounding the shaft hole therein whereby the sun gear is held against axial mo- -tion.

"The bottom of the cup part of the output shaft is eentrally tapped for'the reduced threaded por- 'tion I35 of a stop bolt I 36 which carries a'nut I3 1 bearing againstthe inner surface of the bot- The left-hand-en'd uf -the stop bolt functions-as an adjustable'stop for theright-hand end of the shaftfl (F-ig. 1B).

fin 'thei high-pitch threaded portion-34 of that shaft fil'l-zand adjacent to 'z the :end ..-.named sis ea highapitchnut; tmwhichiihas; a; flan e: I4. I sister mediate 1 its ends, :exteriorly smooth portion ;;on either side of su h "flange and an .exterlorly threaded part I42ton' the leftj-handend for a nut I43 ;Fig..l'B). The interior'threads of the ad lusting nut fit the high pitch threads -34 onethe right-hand end portion-of the shaft 21. The right-hand -;end portion I44 of the input shaft fits into anannular-"recess I93 for-medin theleft- .handipart of e. i h-pit h nut I401 and issplined .bytongue I.39,.Figure 2,. to thesame. Thesmooth part :of the r-rut: I40ztothe left of. the flange I I-I is revolubly mounted in the inner race :I45 ,of-.a .thrustbearing which bearingincludes an inter,- Inediate ring with depressionsfor balls .146 ton .e-ithervside and=a cylindricalflange I41 extendin from either side of the ring. The thrust bearing also includes a; pair-40f apertured ball res tainingring plates- I49. -Anouter race-5015.10!- cated 'betweenthe right-hand series of balls-and the flange of the high-pitchnut, another. one.be tween the left-hand series of balls and the locknut I 4.3. The thrust bearing for the nut I40.is mounted within the central opening of av bearing housing or -thrustcolla-r I55 which is madeinptwo upper and lower parts (Fig. .2) andequipped.witli -a .pa ir-0f opposed tnunnions I56. Either of the same carry .a spacing washer I94 (Figure. 2) 120 space the housingwithin the. central opening I95 .ofa fork still to be described and is journalediln a, square steel block [58,. slidably arranged inla guide opening.

.Such opening is arranged in either, laterally-enlargedsideportion I59 ofanadjusting forklever I60 (Fig. .2, 3) The ends of the tnunnionsiare diametrally. apertured .for .the insertion .of ..-acotter pin I 6 I bearing againstjtheouter; surface of a steel block.

The. lower end of the lever is :apertured .foria bushing I62 containin a. headed fulcrum .bolt I 63. The same carries at, the. headlessenda cotter-pin I6 Iandis mounted. in thebifurcated' pore tionofa fulcrum base I65.which. isfastenedhy screws I66 to the bottom part. of the oylindltieal a n wall- 7 The topend of the fork lever I60 has a notch for a traveling nut I68 provided on either opposed vertical side with atrunnionr I6 9. Either trunnion is iollrnale'din a steel shoe I I0 and provided at its outer end with a. cotter pin IBI'. E ther s ee hoe is, sli a l ar anged in.a'. !8. tudinal; notch arranged inane of thearms on either side of the nut I68 and'forming the ,upper bifurcated end Qfllever I60.

The same is engaged on the screw part o'f'an adjusting stem I12 which is illustrated in detail in Fig. 2,3. Thefront or left-hand smoothend part of'the adjustingshaft extends intohushing 44 and is journalediin abearing device,38 arranged in an-enlargementformed on the righthand side of the casingpartition. ,Another srnjooth part of the adjusting shaft .lies to th,e,right;o,f the screw p rt and carrie intermediate itslength a flange I15 which coeacts with a similar end fiange of a bearing bushing Ill. The same is mounted in an opening inthe boss I18 on the exterior side of the rearend plate. Aspaoing sleeve I hasat 'itsl eft-hand end a flange bearing against the boss and enclosing thesmooth part of the adjusting stem and-disposed outside of 'the casing. A handwheel I82 has at its-laterally extending hub portion on opening for the smooth'part of the-adjusting stem near'the rightha-nd end thereof and -is splined on the-shaft by means of a key-01and heldagainst axial dlsplacement by a nut (84 which is threaded upon the reduced right-hand end part of the adjusting shaft. A handle I85 is afiixed to the hand wheel. The bottom of the cup part of the main output shaft is integral with a reduced concentric bearpart of the output shaft to the right of locknut 150 is surrounded by an oil retainer 15 which is held in position by a flat flange Id of the small rear end plate 12 which is a counterpart of the small front end plate and secured to the large rear end plate in a manner similar to that of the front end structure.

Presuming the transmission to be used in connection with an automobile, the crankshaft and the propelling motor is connected in any suitable manner rigidly to the left-hand section of the input shaft IT. The right-hand end portion of the output shaft I28 leads to the differential or rear wheel drive (not shown) of the automobile or vehicle. The pair of eccentric assemblies which function as control or governor devices are carried by the input shaft and rotate therewith. The governor devices are movable radially outward in opposite directions relative to the input shaft and are geared by means of the racks to the adjusting shaft housed in the input shaft for a purpose which will become clear as the description of operation proceeds.

Each control device or eccentric assembly is also journaled in an assembly of three rockers 55, 61 which are moved radially of the input shaft in succession. Each rocker causes an angular displacement of an alternator or inner part of an overrunning clutch the outer part of which is fixed upon one of three auxiliary shafts loll. Said shaftscarry upon their right-hand ends gears in mesh with a sun or master gear rigid with the output shaft.

Iii order to vary the speed of the latter the length of the stroke of the rockers is varied by an adjusting mechanismrincluding the racks one of which is carried by each eccentric assembly or control device and the adjusting shaft in mesh with the racks through openings in the eccentric portions of the input shaft. The adjusting shaft 21 is held by the spring 25 in a predetermined position within the input shaft, but may be turned against the resistance of said spring 25 by means herein before structurally described the operation of which will be described later. The turning of the adjusting shaft moves the eccenter assemblies or control devices from centric to eccentric positions relative to the axis of the input shaft with the result that the radial stroke of the rockers are increased.

The adjusting shaft 21 is rotated by the engagement between its high-pitch thread part 34 and the adjusting nut I40. The same is rotatably mounted in the lever assembly Ida-IE3 and slidably splined to shaft I"! and may be moved axially of the adjusting shaft by a swing of lever I60, caused by the rotation of the screw stem I12. Axial motion of nut MB causes rotation of the adjusting shaft. The screw shaft I12 holds the lever I51! in adjusted position.

" The more the adjusting shaft 21 is rotated by its nut I40 relative to the input shaft I! to move the eccentric assemblies in a direction from centric to eccentric positions relative to the axis of the input shaft, the greater is the speed of the output shaft.

Various changes may be resorted to provided they fall within the spirit and scope of the inven tion as defined in the appended claims.

What I claim as new and desire to protect by Letters Patent of the U. S. is as follows:

1. In an adjusting mechanism for transmissions of the character described, comprising 'in combination with a transmission including an input shaft having a second shaft rotatably disposed therein and substantially co-extensive therewith and with the transmission, said input shaft being operatively connected to movable eccentric control means geared to said second shaft for eccentric movement relatively to the input shaft in response to rotation of the second shaft relatively to the input shaft; said adjusting mechanism comprising a lever pivotally mounted at one end thereof, said second shaft having a threaded portion at the end thereof adjacent the output end of the transmission, a nut engaging said threaded portion and supported for sliding movement on the end of said input shaft adjacent said threaded portion and splined to the input shaft for rotation therewith, a thrust bearing assembly for said nut, a thrust collar for enclosing said bearing assembly, trunnions projecting laterally from the thrust collar, said lever having an opening to loosely receive the thrust collar and through which the threaded part of the second shaft extends, and provided with openings for rotatably and slidably receiving the trunnions, and means for engaging and actuating the opposite, free end of the lever for rocking it on its pivot and in a direction longitudinally of the second shaft to cause the nut to move longitudinally of the second shaft for rotating the latter relative to the input shaft.

2. In an adjusting mechanism for transmissions of the character described, comprising in combination with a transmission including an input shaft having a second shaft rotatably disposed therein and substantially co-extensive therewith and with the transmission, said input shaft being operatively connected to movable eccentric control means geared to said second shaft for eccentric movement relatively to the input shaft in response to rotation of the second shaft relatively to th input shaft; said adjusting mechanism comprising a lever pivotally mounted at one end thereof, said second shaft having a threaded portion at the end thereof adjacent the output end of the transmission, a nut engaging said threaded portion and supported for sliding movement on the end of the said input shaft adjacentsaid threaded portion and splined to the input shaft for rotation therewith, a thrust bearing assembly for said nut, a thrust collar for enclosing said bearing assembly, trunnions projecting laterally from the thrust collarQsaidlever having an opening to loosely receive the thrust collar and through which the threaded part of the second shaft extends, and provided with openings for rotatably and slidably receiving the trunnions, a feed screw disposed substantially parallel to said second shaft, a follower member threadedly engaging the feed screw and provided with opposed trunnions, and said lever being provided with a. bifurcated free end for receiving said follower and a portion of the feed screw and provided with slidably disposed trunnion blocks for rotatably receiving the follower trunnions whereby said lever will be rocked on its pivot in directions longitudinally of the second shaft and feed screw when the latter is revolved for moving the nut longitudinally of the threaded portion of the second shaft for rotating the latter relative to the input shaft.

3. In an adjusting mechanism for transmissions of the character described, comprising in combination with a transmission including an input shaft having a second shaft rotatably disposed therein and substantially co-extensive therewith and with the transmission, said input shaft being operatively connected to movable eccentric control means geared to said second shaft for eccentric movement relatively to the input shaft in response to rotation of the second shaft relatively to the input shaft, an output shaft and a driving connection between the control means and output shaft; said adjusting mechanism comprising a lever pivotally mounted at one end thereof, said second shaft having a threaded portion at the end thereof adjacent the output end of the transmission, a nut engaging said threaded portion and supported for sliding movement on the end of said input shaft adjacent said threaded portion and splined to the input shaft for rotation therewith, a thrust bearing assembly for said nut, a thrust collar for enclosing said bearing assembly, trunnions projecting laterally from the thrust collar, said lever having an opening to loosely receive the thrust collar and through which the threaded part of the second shaft extends, and provided with openings for rotatably and slidably receiving the trunnions, means for engaging and actuating the opposite, free end of the lever for rocking it on its pivot and in a direction longitudinally of the second shaft to cause the nut to move longitudinally of the second shaft for rotating the latter relative to the input shaft, and a stop interposed between the threaded end of said second shaft and the output shaft and. adjustably connected to the latter for adjustably positioning said second shaft longitudinally of the input shaft.

4. In an adjusting mechanism for transmissions of the character described, comprising in combination with a transmission including an input shaft having a second shaft rotatably disposed therein and substantially co-extensive therewith and with the transmission, said input shaft being operatively connected to movable eccentric control means geared to said second shaft for eccentric movement relatively to the input shaft in response to rotation of the second shaft relatively to the input shaft, an output shaft and a driving connection between the control means and output shaft; said adjusting mechanism comprising a lever pivotally mounted at one end thereof, said second shaft having a threaded portion at the end thereof adjacent the output end of the transmission, a nut engaging said threaded portion and supported for sliding movement on the end of said input shaft adjacent said threaded portion and splined to the input shaft for rotation therewith, a thrust bearing assembly for said nut, a thrust collar for enclosing said bearing assembly, trunnions projecting lateral-1y from the thrust collar, said lever having an opening to loosely receive the thrust collar and through which the threaded part of the second shaft extends, and provided with openings for rotatably and slidably receiving the trunnions, and means for engaging and actuating the opposite, free end of the lever for rocking it on its pivot and in a direction longitudinally of the second shaft to cause the nut to move longitudinally of the second shaft for rotating the latter relative to the input shaft, said lever, nut and the threaded portion of the second shaft being disposed adjacent one end of the transmission and adjacent to said output shaft and remote to the eccentric control means.

GUIDO F. SCI-ILOTE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,227,164 Manly May 22, 1917 1,897,416 Baum Feb. 14, 1933 1,937,127 Pitter Nov. 28, 1933 2,051,783 Dake Aug. 18, 1936 2,144,447 Barnhart Jan. 17, 1939 2,204,514 Schlote June 11, 1940 FOREIGN PATENTS Number Country Date 193,645 Great Britain Mar. 1, 1923 219,434 Great Britain July 31, 1924 

